Software Engineer - FinTech ScaleUp
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Software Engineer - Series A/B FinTech Scale-Up
This is a fantastic opportunity to join a fast-growing, well-funded fintech and be part of our journey as we continue to develop and scale our distributed financial risk platform.
Location: London (Hybrid – 5-minute walk from London Bridge Station)
About BondAval
Founded in 2020, BondAval is a fast-growing fintech transforming B2B credit with innovative, technology-enabled solutions, serving global blue-chip clients across the UK, Europe, US, and Canada.
Having secured Series A funding and with Series B in the pipeline, Bondaval is backed by top European and American VCs like Octopus Ventures, Tallis Capital, Expa and Dawn Capital, alongside Angel Investors like Tom Blomfield (founder of Monzo) and Carlos Cadenas (Index Ventures, GoCardless, Skyscanner).
The Role
We are looking for Full Stack / Back End Software Engineers to join our high-calibre engineering team. You will help design, build, and maintain the core services and APIs that power our proprietary platform, with opportunities to contribute to both back-end and front-end codebases, and explore AI & LLMs agents and frameworks . You will work closely with the CTO, product, and data teams to deliver robust, scalable solutions.
Key Responsibilities
- You will be part of a team responsible for driving the next evolution of our platform, designing architecture, and shaping how we integrate AI and large language models into our products and workflows.
- You will help design, implement, and maintain scalable back-end services and APIs (primarily in Go, with Python for scripting and data).
- You will build fast and help shape our technical roadmap, taking full lifecycle ownership of end-to-end delivery — from technical design and implementation through to testing, deployment, and monitoring.
What We're Looking For
A Blend Of:
- 3+ years of software engineering experience.
- Strong proficiency in a back-end server-side language (Go preferred, Python or Java applicable).
- Some experience of designing and developing distributed systems and scalable architectures is advantageous.
- Experience with relational databases (Postgres) and NoSQL databases (MongoDB, Redis, Cassandra).
- Experience with RESTful API design and integration.
- Familiarity with front-end frameworks (VueJS, React, or Angular).
- Knowledge of source control (Git) and CI/CD tools.
- Understanding of infrastructure and deployment (AWS, Ansible, Kubernetes).
- Some architectural skills and experience with microservices are a plus.
- A genuine interest in AI and LLMs — from using tools like Cursor and Copilot to experimenting with frameworks such as Hugging Face or LangChain is highly desirable.
- An interest in using AI tools to improve workflow and product outcomes.
- Degree in Computer Science (or similar) from a good University highly desirable.
Nice to Have
- Familiarity with message brokers (Kafka, SQS/SNS, RabbitMQ).
- Knowledge of real-time streaming (Kafka Streams, Apache Flink, etc.).
- Exposure to big-data or machine-learning frameworks (TensorFlow, PyTorch, Hugging Face, LangChain).
- Understanding of infrastructure and DevOps (Terraform, Ansible, AWS, Kubernetes).
- Exposure to fintech or start-up / scale-up environments.
Mindset & Attributes
- Positive, objective-focused, and collaborative.
- Willingness to teach and learn from others.
- Strong communication and teamwork skills.
- Passion for software security and quality.
- Eager to understand the business domain and BondAval’s product.
- Demonstrates BondAval’s values in daily work.
- Embraces the rise of AI and seeks to use it to their advantage.
Why Join Us?
- Employee share options – earn a stake in the company you’re helping to build!
- Hybrid working environment with a vibrant office culture on Bermondsey Street.
- Generous benefits package: private healthcare, private pension plan, bike-to-work scheme, £100/year towards a physical challenge of your choice, and more!